Linear guide rail comprehensive performance testing device and testing method for high-end machine tool

Abstract

The application discloses a kind of high-end machine tool linear guide rail comprehensive performance test equipment and test method, it is related to high-end equipment detection technical field, including pedestal, the top of pedestal is symmetrically installed two first guide rails, first test plate assembly is slidably connected on first guide rail, first test plate assembly includes first metal plate, two first sliding supports are symmetrically installed in the bottom side edge area of first metal plate, and first sliding support is matched with first guide rail;The inside of two first guide rails is equipped with second guide rail, and the track path of second guide rail is arranged in side edge, and second test plate assembly is slidably engaged on second guide rail, and second test plate assembly includes second metal plate, and two sides of second metal plate are symmetrically provided with second sliding support, and second sliding support is slidably engaged with second guide rail;First hydraulic actuator group is arranged above first test plate assembly, and two groups of hydraulic actuators are independently connected to hydraulic servo control system, to realize the full coverage test of guide rail high-precision performance and harsh working condition adaptability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-end equipment detection, in particular to a linear guide rail comprehensive performance test equipment for high-end machine tools and a test method. BACKGROUND

[0002] As the core component of mechanical transmission and positioning system, the guiding precision, position repeatability, dynamic response characteristics and adaptability to harsh working conditions of the guide rail directly determine the running stability and service life of the equipment. In high-end equipment manufacturing and automated production lines, strict requirements are put forward for the comprehensive performance of the guide rail, which needs to meet the dual standards of high precision and adaptability to complex working conditions. At present, the performance requirements of high-end equipment for guide rails have expanded from single precision index to comprehensive performance throughout the life cycle, and the precision under ideal working conditions and the safety under non-ideal working conditions need to be verified at the same time. The existing technology lacks integrated test capability for the two working conditions, and cannot compare and analyze the performance correlation of the guide rail under different constraint conditions under the same reference, which leads to that the evaluation of the comprehensive performance of the guide rail is not comprehensive enough, and it is difficult to support the selection and optimization design of high-end equipment. Therefore, it is necessary to design a linear guide rail comprehensive performance test equipment for high-end machine tools and a test method. SUMMARY

[0003] The present application relates to the technical field of high-end equipment detection, in particular to a linear guide rail comprehensive performance test equipment for high-end machine tools and a test method.

[0004] In order to solve the above technical problems, the present application provides the following technical scheme: a linear guide rail comprehensive performance test equipment for high-end machine tools and a test method, comprising a base, two first guide rails are symmetrically installed on the top of the base, a first test plate assembly is slidably connected on the first guide rail, the first test plate assembly comprises a first metal plate, two first sliding supports are symmetrically installed on the bottom of the two side edge regions of the first metal plate, and the first sliding supports are matched with the first guide rail; a second guide rail is installed on the inner side of the two first guide rails, the track path of the second guide rail is arranged on the side edge, a second test plate assembly is slidably engaged on the second guide rail, the second test plate assembly comprises a second metal plate, and two second sliding supports are symmetrically arranged on the two sides of the second metal plate; the second sliding supports are slidably engaged with the second guide rail; a first hydraulic actuator group is arranged above the first test plate assembly, the output end of the first hydraulic actuator group is in contact with the two sides of the first metal plate through a connecting piece, a second hydraulic actuator group is arranged above the second test plate assembly, the output end of the second hydraulic actuator group is fixedly connected with the center region of the second metal plate through a connecting piece, and the two groups of hydraulic actuators are independently connected to a hydraulic servo control system.

[0005] According to the above technical scheme, the first sliding support is slidably connected with the first guide rail, and the first sliding support directly contacts and slides on the top or outer surface of the first guide rail without lateral wrapping or embedding structure.

[0006] According to the technical scheme, the second sliding support is slidingly connected with the second guide rail, the second sliding support is embedded into the second guide rail from the side or is wrapped by the lateral structure of the second guide rail, and closed or semi-closed constraint sliding is formed.

[0007] According to the technical scheme, the top of the first guide rail is uniformly provided with a plurality of first grooves, and a high-precision sensor array is arranged in each first groove, and the high-precision sensor array is used for monitoring and collecting reaction force and torque signals of the first guide rail under different directions and different sizes of loads in real time.

[0008] According to the technical scheme, four small through holes and one large through hole are arranged in the first sliding support, the four small through holes are divided into two sides with the large through hole as a dividing point, a first micro temperature sensor and a first vibration accelerometer are arranged in each small through hole, the first micro temperature sensor is used for detecting the temperature of a heat delivery area after the first guide rail slides, and the first vibration accelerometer is used for detecting a vibration frequency generated when the first guide rail slides.

[0009] According to the technical scheme, the two ends of the second guide rail are provided with fixed blocks, rubber blocks are fixedly installed on the side of the second guide rail, a second groove is arranged in the middle of the rubber block, and a camera assembly is arranged in the second groove, and the camera assembly is used for monitoring and collecting the state of the second guide rail in real time.

[0010] According to the technical scheme, the top of the second sliding support is uniformly provided with a plurality of third grooves, and a second micro temperature sensor and a second vibration accelerometer are arranged in each third groove, the second micro temperature sensor is used for detecting the temperature of a heat delivery area after the second guide rail slides, and the second vibration accelerometer is used for detecting a vibration frequency generated when the second guide rail slides.

[0011] According to the technical scheme, the end of the first guide rail is provided with a calibration monitor, and the calibration monitor is used for detecting the straightness deviation and parallelism of the first test plate assembly on the first guide rail.

[0012] Compared with the prior art, the present application has the following advantages: the first sliding support is slidingly connected with the first guide rail, the first sliding support directly contacts and slides on the top or the outer surface of the first guide rail, there is no lateral wrapping or embedding structure, and the dynamic guiding error of the first guide rail under non-ideal constraint conditions, such as straightness deviation, parallelism fluctuation and cumulative error, is tested.

[0013] The second sliding support is slidingly connected with the second guide rail, the second sliding support is embedded into the second guide rail from the side or is wrapped by the lateral structure of the second guide rail, closed or semi-closed constraint sliding is formed, and the static guiding precision, position repeat precision and attitude stability of the guide rail are tested.

[0014] By setting the upper and lower stacked layout of two sliding modes, the high-precision performance of the guide rail (card-in inner sliding) and the adaptability to harsh working conditions (bare outer sliding) are realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are included to provide a further understanding of the application, and are made a part of the specification. In the drawings:

[0016] Figure 1 is a schematic diagram of the overall three-dimensional structure of the application;

[0017] Figure 2 is a schematic diagram of the first guide rail, the third guide rail and the fourth guide rail of the application;

[0018] Figure 3 is a schematic diagram of the first groove of the application;

[0019] Figure 4 is a schematic diagram of the base structure of the application;

[0020] Figure 5 is a schematic diagram of the guide rail position of the application;

[0021] Figure 6 is a schematic diagram of the Figure 5 enlarged structure of area A in the application;

[0022] Figure 7 is a schematic diagram of the Figure 1 enlarged structure of area B in the application;

[0023] Figure 8 is a schematic diagram of the second groove of the application;

[0024] In the figure: 1, base; 2, first guide rail; 3, first metal plate; 4, first sliding support; 5, second guide rail; 6, second metal plate; 7, second sliding support; 8, first hydraulic actuator group; 9, second hydraulic actuator group; 10, first groove; 11, high-precision sensor array; 12, small through hole; 13, large through hole; 14, fixed block; 15, rubber block; 16, second groove; 17, camera assembly; 18, third groove; 19, calibration monitor; 20, third guide rail; 21, fourth guide rail; 22, work frame; 23, baffle; 24, sliding rail; 25, metal seat; 26, intelligent telescopic arm; 27, detection rod. DETAILED DESCRIPTION

[0025] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0026] Please refer to Figures 1-8 The present application provides a technical solution: a linear guide rail comprehensive performance test device and test method for high-end machine tools, comprising a base 1, two first guide rails 2 are symmetrically installed on the top of the base 1, a first test plate assembly is connected to the first guide rail 2 in a sliding manner, the first test plate assembly comprises a first metal plate 3, two first sliding supports 4 are symmetrically installed on the bottom of the two side edges of the first metal plate 3, and the first sliding supports 4 are matched with the first guide rail 2, so that the first metal plate 3 can move along the first guide rail 2 through the first sliding supports 4.

[0027] The inner sides of the two first guide rails 2 are each provided with a second guide rail 5, and the track path of the second guide rail 5 is arranged on the side edge, which can be connected to a second test plate assembly, the second test plate assembly comprises a second metal plate 6, and two second sliding supports 7 are symmetrically arranged on the two sides of the second metal plate 6, the second sliding supports 7 are slidingly engaged with the second guide rail 5, so that the second metal plate 6 can move along the second guide rail 5 through the second sliding supports 7.

[0028] The above structure is stacked in an up-down manner, so that the first test plate assembly and the second test plate assembly can be tested at the same time without affecting each other, and the floor area is reduced.

[0029] A first hydraulic actuator group 8 for simulating actual working condition load is arranged above the first test plate assembly, and the output end of the first hydraulic actuator group 8 is in power transmission contact with the two sides of the second metal plate 6 through a connecting piece. Correspondingly, a second hydraulic actuator group 9 is arranged above the second test plate assembly, and the output end of the second hydraulic actuator group 9 is also fixedly connected to the center area of the second metal plate 6 through a connecting piece. Both groups of hydraulic actuators are independently connected to a hydraulic servo control system, and can respectively apply an accurately controlled load to the first metal plate 3 and the second metal plate 6.

[0030] The top of the first guide rail 2 is uniformly provided with several first grooves 10. Each first groove 10 is equipped with a high-precision sensor array 11. The high-precision sensor array 11 is used to monitor and collect the reaction force and torque signals of the first guide rail 2 when it is subjected to loads of different directions and sizes in real time. The high-precision sensor array 11 is made by manually arranging existing mature sensors. The first sliding support 4 is provided with four small through holes 12 and one large through hole 13. The four small through holes 12 are equipped with a first micro temperature sensor and a first vibration accelerometer. The first micro temperature sensor is used to detect the temperature of the heat transfer area of ​​the device after it slides on the first guide rail 2. The first vibration accelerometer is used to detect the vibration frequency generated when the device slides on the first guide rail 2. The four small through holes 12 are located on both sides of the large through hole 13 with the large through hole 13 as the dividing point. The purpose is to conduct more comprehensive detection of temperature and vibration.

[0031] The first guide rail 2 was tested by a first miniature temperature sensor to measure the dynamic change of the friction coefficient and wear rate under non-uniform contact. Heat and wear are positively correlated and can be estimated by temperature gradient. This method is suitable for evaluating the friction durability under harsh working conditions. The first vibration accelerometer was used to test the natural frequency and vibration attenuation characteristics of the first guide rail 2 under different loads to evaluate the operational reliability of the first guide rail 2 in a high-frequency vibration environment.

[0032] Fixed blocks 14 are provided at both ends of the second guide rail 5. A rubber block 15 that contacts the second test plate assembly is fixedly installed on the side of the fixed block 14 facing the second guide rail 5. A second groove 16 is provided in the middle of the rubber block 15. A camera assembly 17 is provided inside the second groove 16. The camera assembly 17 is used to monitor and collect the state of the second guide rail 5 when it moves in real time. The camera assembly 17 is an existing mature device. Several third grooves 18 are evenly provided on the top of the second sliding support 7. A second miniature temperature sensor and a second vibration accelerometer are provided in each third groove 18. The second miniature temperature sensor is used to detect the temperature of the heat transfer area of ​​the device after it slides on the second guide rail 5. The second vibration accelerometer is used to detect the vibration frequency generated by the device when it slides on the second guide rail 5.

[0033] The energy loss rate and long-term frictional stability of the second guide rail 5 under stable contact are tested using a second miniature temperature sensor, which is suitable for guide rail selection in high-precision transmission systems. The damping characteristics of the second guide rail 5 are tested using a second vibration accelerometer.

[0034] A calibration monitor 19 is provided at the end of the first guide rail 2. The function of the calibration monitor 19 is to detect the status of the first test board assembly on the first guide rail 2, such as the straightness deviation and parallelism of the first test board assembly.

[0035] Specifically, in the movement mode of the first test plate assembly, the first sliding support 4 and the first guide rail 2 are slidably connected. The first guide rail 2 is installed on the top of the base 1, and the first sliding support 4 directly contacts and slides on the top or outer surface of the first guide rail 2 without any lateral wrapping or embedding structure.

[0036] The movement mode of the second test plate assembly is such that the second sliding support 7 and the second guide rail 5 are slidably engaged, that is, the second sliding support 7 is embedded into the second guide rail 5 from the side or is wrapped by the lateral structure of the second guide rail 5, forming a closed or semi-closed constraint sliding.

[0037] Based on the above differences, the two sliding methods are designed for different performance dimensions of the guide rail and can achieve different test results: The device slides on the first guide rail 2: due to the weak constraint and large gap, it is used to test the dynamic guiding error of the first guide rail 2 under non-ideal constraint conditions, such as straightness deviation, parallelism fluctuation and cumulative error. The cumulative error is the decay of position accuracy after long-term sliding.

[0038] The testing system drives the first test board assembly to slide on the first guide rail 2, and the sliding speed of the first test board assembly can be controlled. It should be noted that the sliding speed of the first test board assembly is divided into different levels within the testing system, and the first guide rail 2 is tested in an increasing order. After each level of sliding speed test is completed, the first test board assembly needs to pause, allowing the calibration monitor 19 to detect the first test board assembly and obtain static straightness deviation data and static parallelism data. The testing system judges the performance of the first guide rail 2 based on the obtained static straightness deviation data and static parallelism data, thus realizing the static performance test of the first guide rail 2. The sliding speed of the first test board assembly at each level... During the process, the calibration monitor 19 performs real-time detection on the first test plate assembly, and obtains the dynamic straightness deviation data and dynamic parallelism data of the first test plate assembly. The test system judges the performance of the first guide rail 2 based on the obtained dynamic straightness deviation data and dynamic parallelism data, and realizes the dynamic performance test of the first guide rail 2. In each speed level, the first hydraulic actuator group 8 needs to apply different loads to the first test plate assembly. The test system classifies the loads of the first hydraulic actuator group 8. After all the loads of all levels have been executed in the same sliding speed level, the next sliding speed level test is performed to test the state of the first test plate assembly when it moves along the first guide rail 2 under different loads. The performance of the first guide rail 2 is judged by testing the first test plate assembly.

[0039] After all the tests on the first test board components are completed, the testing system uses the calibration monitor 19 to detect the status of the first test board components, obtains the straightness deviation data a1 and parallelism data b1 of the first test board components at this time, and compares them with the straightness deviation data a2 and parallelism data b2 of the first test board components when they are not moving on the first guide rail 2, to determine whether the deviation is within the preset error range, and then tests whether the cumulative error of the first guide rail 2 is qualified.

[0040] The equipment slides on the second guide rail 5: due to multi-directional constraints and small gaps, it can test the static guiding accuracy, position repeatability accuracy and attitude stability of the guide rail, and is suitable for the guide rail standard verification of high-precision equipment;

[0041] The testing system drives the second test board assembly to move on the second guide rail 5, and can control the sliding speed of the second test board assembly. The control process is the same as that of the first test board assembly. The camera assembly 17 detects the state of the second test board assembly and obtains data on the static guiding accuracy, position repeatability, and attitude stability of the second test board assembly. The static guiding accuracy is the degree of deviation between the actual motion trajectory, position, and direction of the second test board assembly and the ideal state when it moves along a predetermined direction under static or stable working conditions. The position repeatability is the degree of position deviation of the second test board assembly before movement and after movement and reset. The attitude stability is the degree of swaying deviation of the second test board assembly during movement. The state of the second test board assembly along the second guide rail 5 under different sliding speeds and different loads is tested using the above data. The performance of the second guide rail 5 is judged by testing the second test board assembly.

[0042] The equipment, through its layered design of exposed external sliding and snap-in internal sliding, can achieve full-coverage testing of the guide rail's high-precision performance (snap-in internal sliding) and its adaptability to harsh working conditions (exposed external sliding) on ​​the same platform. The core difference between the two sliding methods corresponds to different testing dimensions. Combined with monitoring data from force sensor arrays, temperature sensors, and vibration accelerometers, it can comprehensively verify key standards such as the guide rail's guiding accuracy, load-bearing capacity, friction durability, dynamic stability, and environmental adaptability, providing data support for guide rail design optimization and application selection.

[0043] The top two sides of the first metal plate 3 are symmetrically provided with third guide rails 20, and the inner side of the third guide rails 20 is provided with a fourth guide rail 21. The third guide rails 20 are slidably connected to the first hydraulic actuator group 8. The purpose is to ensure that the first test plate assembly can still slide normally for testing when the first hydraulic actuator group 8 applies different loads to the first test plate assembly. The fourth guide rail 21 is used for the status testing of some small machine tools on the guide rail.

[0044] A frame 22 is installed in the middle area of ​​the base 1 to support and position the relevant testing equipment. The frame 22 is made of high-strength steel to ensure stability. The first hydraulic actuator group 8 is fixedly installed on the frame 22 to provide power to drive the test components to move. Baffles 23 are set on both sides of the frame 22. The baffles 23 serve as protection and guidance to prevent external interference from affecting the testing accuracy. Several slide rails 24 are evenly distributed on the inner side of the baffles 23. Each slide rail 24 is precision machined to ensure smoothness, which facilitates the smooth sliding of the testing components. Two sets of testing components are set in each slide rail 24. The testing components include a metal seat 25 slidably connected to the slide rail 24. The metal seat 25 achieves low-friction movement through ball bearings. An intelligent telescopic arm 26 is installed at the front end of the metal seat 25. The intelligent telescopic arm 26 uses a servo motor to control the extension and retraction amount and precisely adjust the position. The front end of the intelligent telescopic arm 26 is equipped with several detection rods 27, which are arranged in an array. Each detection rod 27 is equipped with a high-sensitivity thermal detector at its end. The thermal detector is an infrared sensor or thermocouple type, used to detect high-temperature parts in real time and transmit the data to the central testing system in real time.

[0045] Small and medium-sized machine tools mostly adopt a snap-fit ​​sliding guide rail connection method, which has the advantages of compact structure, high stability, and low friction coefficient, making it suitable for precision machining scenarios. Large machine tools, due to their large load-bearing capacity and wide range of motion, mostly adopt an exposed external sliding guide rail design. The friction coefficient between the large machine tool and the guide rail is relatively high, which can easily generate local high-temperature zones during high-speed or long-term sliding, leading to uneven thermal expansion of the material and subsequent deformation problems. Therefore, thermal deformation testing is required to evaluate its performance.

[0046] The first test board component simulates the actual working state of a large machine tool, reciprocating along the first guide rail 2. The running speed, load, and time are preset and controlled by the test system. After a preset time (such as running continuously for several hours) or a preset moving distance (such as completing hundreds of cycles), the first guide rail 2 is subjected to thermal deformation testing. During the test, the first micro temperature sensor is installed in the four small through holes 12 of the first sliding support 4. The sensor is evenly distributed at key points in the sliding area to achieve comprehensive temperature detection of the sliding contact surface. It can collect temperature data at different positions on the sliding contact surface of the first guide rail 2 in real time, including representative positions such as the sliding start point, midpoint, end point, and lateral edge areas. Through the distributed layout of the temperature sensor array, the test system integrates a data processing module to draw the temperature gradient curve of the first guide rail 2 along its length, accurately identify local high temperature points and temperature change rates, and indirectly reflect the location and degree of thermal deformation of the first guide rail 2. The greater the temperature difference of the first guide rail 2, the more significant the difference in thermal expansion and the more severe the deformation, which may cause unevenness or increased gap on the guide rail surface. At the same time, a high-precision sensor array 11 is set in the first groove 10 at the top of the first guide rail 2. The array includes strain gauges and pressure sensors, which can monitor the torque data of the first guide rail 2 under load in real time, including distributed torque and peak torque. If the first guide rail 2 undergoes thermal deformation, it will cause deviation in the straightness of the first guide rail 2 or local bending, thereby changing the contact state between the first guide rail 2 and the first test plate assembly, causing abnormal fluctuations in the torque distribution. The judgment of this abnormal fluctuation is based on a sudden increase in torque in a certain area (such as exceeding a threshold). This may be due to local stress concentration caused by thermal bending of the first guide rail 2, affecting the overall strength of the guide rail. At the same time, the first vibration accelerometer in the first sliding support 4 can detect the vibration frequency and amplitude of the first test plate assembly when sliding on the first guide rail 2. Thermal deformation will cause unevenness or gap changes on the surface of the first guide rail 2, causing abnormal vibration signals (such as frequency drift or amplitude increase) during the sliding process of the first test plate assembly. This helps to verify the impact of thermal deformation on the dynamic stability of the guide rail and ensures the comprehensiveness of the test. The thermal deformation test results are fed back by data analysis software to indicate whether the structural design and material selection of the first guide rail 2 are qualified. This provides data support for the subsequent material selection of the first guide rail 2, such as the selection of high thermal conductivity alloys, or structural optimization, such as adding cooling channels, thereby extending the service life of large machine tools and improving machining accuracy.

[0047] After the first test board assembly completes its operation, the test system needs to drive the two sets of detection components to adjust their height to accommodate different test objects. The upper detection component moves precisely to the surface of the first sliding support 4 to detect its surface temperature; the lower detection component is positioned to the surface of the second guide rail 5 to detect its surface temperature. Through direct contact, the detection rod 27 adheres to the surface to acquire temperature data, ensuring interference-free measurement. The data is transmitted to the test system in real time for algorithmic judgment, increasing test accuracy. The operation of the detection component is as follows: the testing system drives the metal base 25 to move up and down along the slide rail 24 through control commands. The moving speed is monitored by the encoder until the position of the metal base 25 is adjusted to the preset position, such as the height calibration point. Then, the intelligent telescopic arm 26 is driven to extend or retract. The extension amount is precisely controlled by the stepper motor, which drives the detection rod 27 to move. Finally, the detection rod 27 is moved to the position of fitting the sliding support or guide rail to ensure uniform contact pressure. The temperature of the same area is detected by multiple detection rods 27. After the system collects multiple sets of data, it uses an averaging algorithm to calculate the average value, eliminates random errors, significantly increases data accuracy, and provides a reliable basis for subsequent analysis.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A comprehensive performance testing device for linear guides used in high-end machine tools, comprising a base (1), characterized in that, Two first guide rails (2) are symmetrically installed on the top of the base (1). A first test plate assembly is slidably connected to the first guide rails (2). The first test plate assembly includes a first metal plate (3). Two first sliding supports (4) are symmetrically installed on the bottom side areas of the first metal plate (3). The first sliding supports (4) match the first guide rails (2). A second guide rail (5) is installed on the inner side of each of the two first guide rails (2). The track path of the second guide rail (5) is set on the side. A second test plate assembly is slidably engaged on the second guide rail (5). The second test plate assembly includes a second metal plate. (6) The second metal plate (6) is symmetrically provided with second sliding supports (7) on both sides, and the second sliding supports (7) are slidably engaged with the second guide rail (5); the first hydraulic actuator group (8) is provided above the first test plate assembly, and the output end of the first hydraulic actuator group (8) is in contact with both sides of the first metal plate (3) through a connector; the second hydraulic actuator group (9) is provided above the second test plate assembly, and the output end of the second hydraulic actuator group (9) is fixedly connected to the central area of ​​the second metal plate (6) through a connector; both hydraulic actuators are independently connected to the hydraulic servo control system. The first sliding support (4) is slidably connected to the first guide rail (2). The first sliding support (4) directly contacts and slides on the top or outer surface of the first guide rail (2) without any lateral wrapping or embedding structure. The second sliding support (7) and the second guide rail (5) are slidably engaged. The second sliding support (7) is embedded into the second guide rail (5) from the side or is wrapped by the lateral structure of the second guide rail (5) to form a closed or semi-closed constraint sliding. The top of the first guide rail (2) is uniformly provided with several first grooves (10), and each first groove (10) is provided with a high-precision sensor array (11). The high-precision sensor array (11) is used to monitor and collect the reaction force and torque signal of the first guide rail (2) under different directions and different sizes of loads in real time. A calibration monitor (19) is provided at the end of the first guide rail (2), the calibration monitor (19) being used to detect the straightness deviation and parallelism of the first test plate assembly on the first guide rail (2).

2. The comprehensive performance testing equipment for linear guides used in high-end machine tools according to claim 1, characterized in that, The first sliding support (4) is provided with four small through holes (12) and one large through hole (13). The four small through holes (12) are located on both sides with the large through hole (13) as the dividing point. Each small through hole (12) is provided with a first micro temperature sensor and a first vibration accelerometer. The first micro temperature sensor is used to detect the temperature of the heat transfer area after the first guide rail (2) slides. The first vibration accelerometer is used to detect the vibration frequency generated when the first guide rail (2) slides.

3. The comprehensive performance testing equipment for linear guides used in high-end machine tools according to claim 2, characterized in that, Fixed blocks (14) are provided at both ends of the second guide rail (5). A rubber block (15) is fixedly installed on the side of the fixed block (14) facing the second guide rail (5). A second groove (16) is provided in the middle of the rubber block (15). A camera component (17) is provided inside the second groove (16). The camera component (17) is used to monitor and collect the state of the second guide rail (5) when it moves in real time.

4. The comprehensive performance testing equipment for linear guides used in high-end machine tools according to claim 3, characterized in that, The top of the second sliding support (7) is uniformly provided with several third grooves (18). Each third groove (18) is provided with a second micro temperature sensor and a second vibration accelerometer. The second micro temperature sensor is used to detect the temperature of the heat transfer area after the second guide rail (5) slides, and the second vibration accelerometer is used to detect the vibration frequency generated when the second guide rail (5) slides.

5. A method for testing the comprehensive performance of linear guides for high-end machine tools using the comprehensive performance testing equipment for high-end machine tools as described in claim 4, characterized in that, The testing system drives the first test board assembly to slide on the first guide rail (2), and divides the sliding speed of the first test board assembly into different levels, and tests the first guide rail (2) in an increasing order; after the sliding speed of each level is completed, the first test board assembly is paused, and the calibration monitor (19) detects and acquires the static straightness deviation data and static parallelism data of the first test board assembly to realize static performance testing; during the execution of the sliding speed of each level, the calibration monitor (19) detects and acquires the dynamic straightness deviation data and dynamic parallelism data of the first test board assembly in real time to realize dynamic performance testing.

6. The comprehensive performance testing method for linear guides for high-end machine tools according to claim 5, characterized in that, After the first test board assembly simulates the actual working state of a large machine tool and reciprocates along the first guide rail (2) for a preset time or distance, the temperature data of different positions of the sliding contact surface of the first guide rail (2) is collected by the first miniature temperature sensor of the first slide (4) and a temperature gradient curve is plotted; the distributed torque and peak torque of the first guide rail (2) under load are monitored by the high-precision sensor array (11) on the top of the first guide rail (2); the vibration frequency and amplitude of the first test board assembly when sliding are detected by the first vibration accelerometer of the first slide (4) and the degree of thermal deformation of the first guide rail (2) is comprehensively evaluated.

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